The altitude (i. e., height) of a triangle is increasing at a rate of 1.5 cm/minute while the area of the triangle is increasing at a rate of 1.5 square cm/minute. at what rate is the base of the triangle changing when the altitude is 12 centimeters and the area is 88 square centimeters? the base is changing at cm/min.

-1.583 cm/min

Step-by-step explanation:

The area of a triangle is given by

A=BH/2

A is area, B is base, H is height

Differentiating both over time

we have that

When H=12 and A=88 then B is

B=14.66 cm

Therefore

b

step-by-step explanation:

3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.