Question

12. If length of two sides of 1 point
a triangle are in the ratio
5:6:7and the perimeter is
180cm.find the measure of
the 3rd side
O 70cm
O 60cm
O 50cm
O 90cm​

Answer 1

$ANSWER:-$

PERIMETER :- 180 cm

RATIOS :- 5x, 6x , 7x

$5x + 6x + 7x = 180 \\ \\ 18x = 180 \\ \\ x = \frac{180}{18} \\ \\ x = 10 \\ \\ 5x = 5(10) = 50 \: cm \: \\ \\ 6x = 6(10) = 60 \: cm \: \\ \\ 7x = 7(10) = 70 \: cm \:$

SO , THIRD RATIO GIVEN IS = 7

SO MEASURE OF THIRD SIDE = 70 cm

HOPE IT HELPS

MARK BRAINLIEST PLS