The side lengths are congruent, because the triangle is only being moved
Answer:
V = 10 x 9 x (1/3)
V = 30 in³
Step-by-step explanation:
Answer:
h = √72 in.
Step-by-step explanation:
Height of the cone using pythagorean theorem, a² + b² = c², where:
a = h
b = ½(6) = 3 in.
c = 9 in.
Plug in the values
h² + 3² = 9²
h² + 9 = 81
h² + 9 - 9 = 81 - 9
h² = 72
h = √72
Answer:
Step-by-step explanation:
Considering the given triangle QED, to determine ED, we would apply the sine rule. It is expressed as
a/SinA = b/SinB = c/SinC
Where a, b and c are the length of each side of the triangle and angle A, Angle B and angle C are the corresponding angles of the triangle. Likening it to the given triangle, the expression becomes
ED/SinQ = EQ/SinD = QD/SinE
Therefore
ED/Sin 49 = 2/Sin 35
Cross multiplying, it becomes
EDSin35 = 2Sin49
0.574ED = 2 × 0.755
0.574ED = 1.51
ED = 1.51/0.574
ED = 2.63 in
Answer: B) Right angles are congruent
This is another way of saying "all 90 degrees are the same measure". The square angle marker indicates a right or 90 degree angle.