The area of a triangle is 84 sq cm. If its base is 14 cm, find the length of the height drawn to that base. Then state what the area would become if both the base and that height were doubled.

Question

Accepted Answer

height 12 cm, new area 336 sq cm. 84 = 1/2 x 14 x h = 7h, so h = 12 cm. Doubling both base and height multiplies the area by 4: 84 x 4 = 336 sq cm.

The area of a triangle is 84 sq cm.
If its base is 14 cm, find the length of the height drawn to that base.
Then state what the area would become if both the base and that height were doubled.

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 7 Area of Triangles practice

The area of a triangle is 84 sq cm.If its base is 14 cm, find the length of the height drawn to that base.Then state what the area would become if both the base and that height were doubled.

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 7 Area of Triangles practice

The area of a triangle is 84 sq cm.
If its base is 14 cm, find the length of the height drawn to that base.
Then state what the area would become if both the base and that height were doubled.