Question

Find the length of base PR if area of Triangle is 100 sq cm and altitude QT is 10cm.​

Answer 1

Answer:

area of triangle = 1/2×b×h

100 sq cm=1/2×b×10

100=b×5

b=100÷5

b=20cm

Answer 2

Answer:

Given:

area = 100 sq cm

altitude ( which is the height of the triangle ) = 10 cm

area of a triangle = 1/2 * base * height

100 sq cm = 1/2 * base * 10

100 sq cm = base * 5

base = 100 sq cm / 5 cm

Therefore, base = 20 cm