Ask a Doubt
Request a call back

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

ICSE Class 8 Answered

In the triangle, sum of two angles is 90° which is the measure of the third angle. Also, the difference of these 2 angles is 10°, find the measure of these two unknown angles. 
Asked by Cl_narayan | 30 Jan, 2020, 10:36: AM
answered-by-expert Expert Answer
 
Let the 1st angle of a triangle = x 
then the second angle = 90° - x
 
According to the condition, we get
 
x - (90° - x) = 10
→ 2x - 90 = 10
→ 2x = 100
→   x = 50° and 90° - x = 90° - 50° = 40°
Therefore the measure of the two unknown angles are 50° and 40°.
Answered by Yasmeen Khan | 30 Jan, 2020, 11:35: AM

Concept Videos

Multiple Choice Questions Practice Test Subjective Questions Webinar Subjective Questions Pre Board Assessment
Answered Unanswered My Questions My Answers
ICSE 8 - Maths
2p/3-p/5=11 1/3
question image
Asked by kurmaramulu589 | 24 Aug, 2023, 09:02: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Maths
ICSE Class 8 Maths Linear Equations The answer maybe rechecked. Ans: Let B's age= x Then A's age= x+5 5years ago: B's age was= (x-5)yrs A's age was= (x+5-5)yrs = x yrs As per question: A's age/B' age= 3/2 x/x-5=3/2 2x=3x-15 3x-2x=15 B's Present age = x=15 yrs(Ans) A's present age= x+5= 15+5= 20 yrs(Ans) But, The answer given in the uploaded video are 5 yrs and 10 yrs Please recheck this.  
Asked by casumitbarman | 05 Apr, 2023, 09:59: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Maths
the digits of a two-digit number differ by 3 if the digits are interchanged and the resulting number is added to the original number we get 121 find the original number
Asked by prajittm | 20 Sep, 2021, 05:47: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Maths
Please explain this
question image
Asked by tishika.thatre | 22 Dec, 2020, 01:30: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Maths
The sum of 3 consecutive multiples of 7 is 777, one multiple among the three multiples is  
Asked by anil.wgl.msn | 25 Nov, 2020, 10:21: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Maths
rohits mother age is five times rohits age. if the sum of their ages is 66.find the ages of rohit and his mother
Asked by bhwanapathania1992 | 31 Aug, 2020, 04:00: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Maths
The sum of three consecutive multiples of 7 is 777. Find the three numbers
Asked by Bateelalmeena | 03 Mar, 2020, 11:38: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Maths
The base of an isosceles triangle is 3 cm longer than each of other sides if the perimeter is 54 cm find the length of its sides
Asked by vikascharasia2424 | 29 Feb, 2020, 03:39: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Maths
The difference between the two numbers is 7. Two times the smaller number added to the larger number gives 22. Find the two numbers. 
Asked by Cl_narayan | 06 Feb, 2020, 06:32: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 8 - Maths
One number is three times the other number. The difference between the two numbers is 12. Find the two numbers. 
Asked by Cl_narayan | 06 Feb, 2020, 06:26: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt

Be a Top Scorer in the Exam with Test Series and Test Generator!

Enrol Now
×