👤
Dustinalmazan023go
Answered

The area (A) of a triangle varies jointly as its base (b) and height (h). The area is 20 cm² when the base is 5 cm and the height is 8 cm. What is the height when the area is 35 cm² and the base is 7 cm?​

Sagot :

ImYOURMathTeachergo

Answer:

10 cm

Explanation:

First we have to find the k

Given:

a = 20cm², b = 5cm, h = 8cm, k = ?

Formula:

a = kbh

Solution:

20 = k (5)(8)

20 = k (40)

40/20 = k

2cm = k

So the k is 2, next we need to find the Height

Given:

a = 35cm², b = 7cm, h = ?

Solution:

35 x 2 = 70

70 ÷ 7 = 10cm

So that the Height is 10cm

«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»

The

Mathematics is not about

      how you solve,

but how you understand.

#Math Teacher

#Math is Fun

Go Training: Other Questions