Explanation

3, 4, and 5

Since all three conditions of the Triangle Inequality Theorem are satisfied:

3 + 4 = 7 > 5

3 + 5 = 8 > 4

4 + 5 = 9 > 3

Explanation

Number of bricks = measurement of wall/measurement of each bricks

⇒ (800 cm × 600 cm × 22.5 cm)/(25 cm × 11.25 cm × 6 cm)

⇒ 6400

∴ The number of bricks needed in 6400.

Explanation

Area = Length x Width

680 = 20 x Width

Width = 34 ft

Fencing is required for 3 sides:

Fencing length = Width + Width + Length

= 34 + 34 + 20

= 88 ft

So, the correct answer is 88 ft.

Explanation

The equation X + 3/x = 4 is called an equation.

Explanation

Vertical angles are equal. Given:

80° = 4x

Divide both sides by 4:

x = 80° / 4

x = 20°

Explanation

The sum of the interior angles of a triangle is 180 degrees.

x-35 + x-25 + 1/2x - 10 = 180

2.5x -70 = 180

2.5x = 250

x=100

Explanation

A triangle has three edges

Its three sides.

It also has three vertices, which are each corner where two edges meet.

Explanation

In geometry, the area enclosed by a circle of radius r is πr2

Arear of the circle: πR2

The perimeter of the circle: C = 2πR

Symmetry group: O(2)‎

Explanation

To find the total surface area (TSA) of the box:

TSA = 2(lb + bh + hl)

Given length (l) = 5 cm, breadth (b) = 2 cm, and height (h) = 3 cm:

TSA = 2(5_2 + 2_3 + 3*5)

= 2(10 + 6 + 15)

= 2(31)

= 62 cm²

Explanation

The surface area of a sphere (A) is given by the formula:

A = 4 × π × r²

Given A = 616 m², let's solve for r:

616 = 4 × π × r²

616 = 4 × (22/7) × r²

616 = 88/7 × r²

r² = 616 × 7 / 88

r² = 49

r = √49

r = 7