Question

The base of a triangle is 3.4cm.the area is 20.74cm.find the height to 1 dp​

Answer 1

• Answer:

h = 12,2 cm

• Explanation:

Area formula

A = b×h/2

20.74 = 3.4×h/2

41.48 = 3.4h

h = 41.48/3.4

h = 12,2 cm

Answer 2

12.2 cm

Explanation:

The area (A) of a triangle is calculated as

A =
`(1)/(2)` bh ( b is the base and h the height )

Here A = 20.74 and b = 3.4 , thus

`(1)/(2)` × 3.4 × h = 20.74 ( multiply both sides by 2 to clear the fraction )

3.4h = 41.48 ( divide both sides by 3.4 )

h = 12.2 cm