Answer:
A = 15 cm^2
Step-by-step explanation:
The area of a triangle is found by
A = 1/2 bh
A = 1/2 (10) * 3
15 cm²
area= 1/2*base*height
area= 1/2*10 cm*3 cm = 15 cm²
Answer: -8
Complementary angles are equal to 90 degrees.
angleABC=angleDBC
6x+13=4x-3
get x alone
2x+13=-3
subtract 13 from both sides
2x=-16
divide by 2 on both sides
x=-8
18
The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
The factors of 18 are 1, 2, 3, 6, 9, 18
The common factors are 1, 2, 3, 6, 9, 18
The greatest common factor = 18
