Question

find the base of a triangle whose area is 90 cm² and height 12 cm.​

Answer 1

Given :-

• Area of the triangle = 90 cm²

• Height of the triangle = 12 cm

To find :-

• Base of a triangle

Solution :-

We know that,

• Area of a triangle = 1/2 × b × h

According to the question now,

➳ 90 = 1/2 × b × 12

➳ 90/6 = base

➳ base = 15cm ★

Hence, the base of the triangle is 15cm.

Answer 2

Given:

• Area of triangle = 90 cm²
• Height of triangle = 12 cm

To Find:

• Base of a triangle.

Solution:

Here,

• Area = 90 cm²
• height = 12 cm

As we know:

Area of triangle = 1/2 × b × h

where,

• b = base
• h = height

Putting the values:

→ 90 = 1/2 × b × 12

→ 90 = b × 6

→ 90/6 = b

→ 15 = b

Hence,

• Base of triangle = 15 cm.