Please help I will mark BRAINLIEST

The perimeter of the semi-circle will be: 3π + 6cm

Step-by-step explanation:

The formula for the perimeter of a semi circle is given as:

= πr + 2r

where,

π = 3.142

r = radius = 3cm

Therefore, the perimeter will then be:

= πr + 2r

= (3 × π) + (2 × 3)

= 3π + 6

Therefore, the perimeter of the semi-circle will be: 3π + 6cm

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.