The options are... Given

Angle addition postulate

Def. right angle

Congruent complements theorem

Substitution

Addition property of equality

Def. complementary angles

Linear pairs theorem

Congruent supplements theorem

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

Factor and solve to find roots x squared -x - 90 =0

Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. kevin spins the spinner 180 times. kevin determines about how many times the spinner will land on red or green, and his work is shown below. -kevin has the formula reversed; it should be the total number of sections over the number of red or green sections. -kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections. -kevin should multiply by the number of sections in the spinner rather than the total number of spins. -kevin calculated the prediction correctly and did not make any mistakes.