Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

 Two circular pieces of equal radii and maximum area, touching each other are cut out from a rectangular card board of dimensions 14 cm 7 cm. Find the area of the remaining card board. Use pie=22/7
Asked by shailesh.solanki | 18 Mar, 2018, 19:29: PM
answered-by-expert Expert Answer
begin mathsize 16px style Dimensions space of space rectangular space board space is space 14 cm space cross times space 7 space cm. Area space of space rectangular space board equals 14 cross times 7 equals 98 space cm squared Area space of space 2 space circular space pieces equals 2 πr squared Diameter space can space not space be space more space than space 7 space hence comma space straight r equals 7 over 2 space cm Area space of space 2 space circular space pieces equals 2 cross times 22 over 7 cross times 7 over 2 cross times 7 over 2 equals 77 space cm squared Area space of space remaining space cardboard equals 98 minus 77 equals 21 space cm squared end style
Answered by Sneha shidid | 19 Mar, 2018, 10:44: AM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 10 - Maths
Please solve this question ?
question image
Asked by Vidushi412 | 11 Aug, 2020, 22:20: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
How to prove that opposite sides of a quadrilateral circumscribing a circle  subtend supplementary angles at the centre of the circle 
Asked by ssai6651 | 08 Jan, 2020, 07:39: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Find area of shaded region
question image
Asked by tejutanu2004 | 16 Sep, 2019, 20:27: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
 Two circular pieces of equal radii and maximum area, touching each other are cut out from a rectangular card board of dimensions 14 cm 7 cm. Find the area of the remaining card board. Use pie=22/7
Asked by shailesh.solanki | 18 Mar, 2018, 19:29: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
In the figure, a square OABC is inscribed in a quadrant OPBQ. If OA = 20 cm, find the area of the shaded region.
Asked by Topperlearning User | 27 Jul, 2017, 14:33: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
The inside perimeter of a running track shown in the figure is 400 m. The length of each of the straight portions is 90 m, and the ends are semi-circles. If the track is 14 m wide every where, find the area of the track. Also, find the length of the outer boundary of the track.
Asked by Topperlearning User | 27 Jul, 2017, 14:33: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Four equal circles are described about four corners of a square so that each touches two of the others, as shown in the figure. Find the area of the shaded region, if each side of the square measures 14 cm.
Asked by Topperlearning User | 04 Jun, 2014, 13:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
In triangle ABC, angle A = 90o, AB = 12 cm and BC = 20 cm. Three semi-circles are drawn with AB, AC and BC as diameters. Find the area of the shaded portion.
Asked by Topperlearning User | 27 Jul, 2017, 14:33: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
In the figure, ABC is an equilateral triangle of side 12 cm. The circle is centered at A with radius 6 cm. Find the area of the shaded region.
Asked by Topperlearning User | 27 Jul, 2017, 14:28: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Find the area of the region ABCDEFA shown in the figure, given that ABDE is a square of side 10 cm, BCD is a semi- circle with BD as diameter, EF = 8 cm, AF = 6 cm and angle AFE = 90o.
Asked by Topperlearning User | 27 Jul, 2017, 14:33: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt