Answer:
1) m ∠B = 132°
2) m ∠B = 113°
Step-by-step explanation:
1. In triangle ABC, m ∠A=36, and m ∠C=12. Calculate m ∠B.
We are given measure of 2 angles and we need to find the third angle.
We know that, sum of angles of triangle = 180°
We can write as:
∠A + ∠B + ∠C = 180°
Now put m ∠A=36 and m ∠C=12, to find m ∠B
So, we get m ∠B = 132°
2. In triangle ABC, m ∠A=40, and m ∠C=27. Calculate m ∠B.
We are given measure of 2 angles and we need to find the third angle.
We know that, sum of angles of triangle = 180°
We can write as:
∠A + ∠B + ∠C = 180°
Now put m ∠A=40 and m ∠C=27, to find m ∠B
So, we get m ∠B = 113°
Answer:
First one is EQUAL and Second one is NOT EQUAL
Answer:
y = 56
Step-by-step explanation:
given that x and y are proportional then
y = kx ← k is the constant of proportionality
to find k use the given condition y = 14 when x = 8
k = = = , thus
y =
when x = 32
y = = 56
Complete Question:
The area of a trapezium is 400 cm2, the distance between the parallel sides is 16 cm. If one of the parallel sides is 20 cm, then the length of the other side is ______
Answer:
Step-by-step explanation:
Given
--- Area
--- Height
Required
The length of the other side (Side 2)
The area of a trapezium is:
Divide both sides by 8
Collect Like Terms
Answer:
90
Step-by-step explanation:
Step 1: Given data
Side of the rectangular prism (s): 3
Height of the rectangular prism (h): 6
Step 2: Calculate the surface area (SA) of the base
We will use the following expression, replacing the values for s and h.
SA = 2 × s² + 4 × s × h
SA = 2 × 3² + 4 × 3 × 6 = 90
The units are not provided but the SA should have the same units as s and h, but raised to the power of 2.