Answer:
its now proved
Step-by-step explanation:
Here in this question, we are to solve for x and get the measure of Angle A
Mathematically,
∠A = ∠B
The reason for this is because both are corresponding angles and corresponding angles are equal.
Since they are equal in value, we can equate the given expressions for each of the two angles
Thus;
7x + 40 = 3x + 112
Let us collect like terms
7x-3x = 112 - 40
4x = 72
x = 72/4
x = 18
But the question asks to get the value of ∠A
From the questionn, we are told that ∠A = 7x + 40
To get the value of ∠A, we need to substitute x
∠A = 7(18) + 40
∠A = 126 + 40
∠A = 166
∠A = 166 and x = 18
I think it is not finished you need to tell me want b means.
Answer: The surface area of the cube is 385 mm^2.
When we are finding the surface area of a shape, we need to add up all the areas of each face. In this case, there are 6 faces.
Each face is the shape of square with sides of 8 mm. So the area of each face is 8 x 8 = 64 square mm.
Since we have 6 faces, we will multiply 64 by 6 to get 384 mm^2 in all.
