One angle measures 27°, and another angle measures (8d − 9)°. If the angles are complementary, what is the value of d?

d = 72

d = 21

d = 3

d = 9

One angle measures 27°, and another angle measures (8d − 9)°. If the angles are complementary, what is the value of d?

d = 72

d = 21

d = 3

d = 9

valueof d is 9 due to the pair ofanglesbeingcomplementary. which is the correctanswerwould beoption(D).## What are complementary angles?

complementaryangles are defined as whenpairingofangles additionto 90° then they are called complementary angles. There are two types of supplementary angles.pairofanglesas:sumsup to 90° then they are calledcomplementary angles.subtractionoperation,divisionoperation,valueof d is 9.complementary angleshere:The answer is d=9 because complementary means it is a right angle meaning it is 90 degrees, so u find a number that multiplies by 8 to find a number a little bigger then the number 90 after u add the starting number