Angles a, b, and c are all 60°. A triangle’s angles add up to 180, and if the triangle is equilateral, each angle must be 60 (180/3). Angle d is 120° because b and d form a supplementary angle (180°), so 180-60 is 120. Angle e and f and 30°. Angles c and e form complementary angles (90°), so 90-60=30. For f, if the triangle adds up to 180, 180-120-30 = f. The 120 comes from d and the 30 comes from e. This leaves f as 30.
Decimals<span> are a type of fractional number. The </span>decimal<span> 0.5 represents the </span>fraction<span>5/10. The </span>decimal<span> 0.25 represents the </span>fraction<span> 25/100. </span>Decimal fractions<span> always have a denominator based on a power of 10.</span>
Answer:
268
Step-by-step explanation:
Area for surface area of a rectangular prism:
Assuming:
Hope this helps!
Answer: b=4, c=2
Step-by-step explanation:
Since ΔXYZ and ΔVUW are congruent, we can set the sides equal to each other.
c+16=9c [subtract both sides by c]
16=8c [divide both sides by 8]
c=2
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10b=b+36 [subtract both sides by b]
9b=36 [divide both sides by 9]
b=4
