Question

@AnswerMyQuestions @$w3G_Godd

Answer 1

A circle has a diameter of ten millimeters. What are the circumference and area of the circle? Use three point one four for pi. Round to the nearest tenth.

fifteen point seven millimeters; seventy-eight point five square millimeters

thirty-one point four millimeters; seventy-eight point five square millimeters

fifteen point seven millimeters; three hundred fourteen point zero square millimeters

thirty-one point four millimeters; three hundred fourteen point zero square millimeters

Answer 2

given: diameter = 10mm
2* radius = diameter
radius = diameter/2
radius = 10/2
radius = 5

radius r is 5mm

Answer 3

so whitch one @$w3G_Godd

Answer 4

Circumference C = 2(pi)r
C = 2(3.14)5
C = 10(3.14)
C = 31.4mm


Area A = (pi)r^2
A = (3.14)(5)^2
A = (3.14)(25)
A = 78.5 square mm

Sorry i never finshed

Answer 5

second one

Answer 6

A square pyramid has a total surface area of one thousand square feet. The area of the base is two hundred square feet. What is the area of one triangular face of the lateral surface?

one hundred twenty-five square feet

one hundred fifty square feet

one hundred seventy-five square feet

two hundred square feet

Answer 7

bs=400
Area of a triangle is (1/2)bs=(1/2)*400=200