CBSE Class 7 Answered
Angles of a triangle are in the ratio 1:2:3. Construct this triangle with side between the two smaller angles as 10cm. Measure the other two sides.
Asked by sahatemali | 17 Nov, 2018, 07:54: PM
Expert Answer
angles are in the ratio 1:2:3 ; let angles are x, 2x and 3x .
hence we have, x+2x+3x = 6x = 180° or x = 30°
hence angles are 30°, 60° and 90°.
Draw AB of length 10 cm. draw 
CAB = 60° and draw CBA = 30° .
CAB = 60° and draw CBA = 30° . we get triangle ABC as per requirement and it is shown in figure.
Other sides are found to be 5 cm and 8.7 cm
Answered by Thiyagarajan K | 18 Nov, 2018, 02:30: AM
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