Determining Formulas

Question 1

Two angles are complementary. The measure of one is 21 more than twice the other. What should you consider?

Accepted Answer

the angles add up to 90°

Question 2

A garden space is an isosceles right triangle with one leg that is 15ft. What type of special right triangle is it?

Accepted Answer

45-45-90° triangle

Question 3

Quad ABCD has angles 125, 42 and 75°. Knowing that the sum of the angles is 360° will help find the missing angle?

Accepted Answer

True

Question 4

Write the eq. of the line in slope-intercept form that passes through (2,3) m= 1/2. You should begin with what form?

Accepted Answer

y-y1= m(x- x1)

Question 5

How high is the end of a 70ft ramp if it is angled at 60°? This is a 45-45-90° triangle?

Accepted Answer

False

Question 6

Find the distance between the pts P(8,2), Q(3,8) to the nearest tenth. Determine the formula needed to solve the problem

Accepted Answer

d =√(x2-x1 )2 + (y2-y1)2

Question 7

Write the equation in slope-intercept form for the line that is perpendicular to the line that has m =¼ & pt (0,0)

Accepted Answer

the slope that is perpendicular will be m =-4

Question 8

You live in Topeka, KS at (41N, 84W). Your friend lives in Blue Grass, MO ( 39N, 120W). You plan to meet halfway.

Accepted Answer

use the midpoint formula to determine where you should meet.

Question 9

Find the slope of the line that passes through A(-4,-6) & B (5, 3). What is the slope formula?

Accepted Answer

y2 - y1 / x2 -x1

Question 10

What formula is needed to solve the following? Jasmine plans to sew fringe around a circular pillow that has d=10cm?

Accepted Answer

C = 2⫪r

Question 11

Find the area of the triangle with a base 5ft and height 8ft. What is the correct formula?

Accepted Answer

A = ½ (5)(8)

Question 12

Triangle ABC is a right triangle with side lengths 3, 4 ,5. Do they form a PT triple ? What is a Pythagorean Triple?

Accepted Answer

a set of 3 numbers that satisfy the Pythagorean Theorem

Questions 12