Triangle | MCQs

Explanation

The area  𝐴 of an equilateral triangle with side length 𝑎 is calculated using the formula  𝐴 = 3/4 𝑎^2.

This formula derives from the general area formula for triangles and takes into account the properties of equilateral triangles.

Explanation

A triangle is a polygon with three sides.

It is the defining characteristic of this geometric shape.

Explanation

An angle total of 180 degrees.

Triangle has Angle A 30 degrees.

The remaining two angles should = 150

90 + 60 =150

75 + 75 = 150

70 + 80 =150

Explanation

• the triangle where all side is different in length is called a scalene triangle.
• A scalene triangle is a triangle whose all sides are unequal and all angles have different measures
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Explanation

Explanation

The triangle with sides 26 cm, 24 cm and 10 cm is right angled, where the hypotenuse is 26 cm.

Area of the triangle =1/2 x base x height => 1/2 x 24 x 10 = 120 sq.cm

Explanation

Since the sides are in the ratio 3:4:5, let's assume the common multiplier is x. Then, the sides can be written as 3x, 4x, and 5x.

The perimeter is the sum of all sides, so we can set up the equation:

3x + 4x + 5x = 24

Combine like terms:

12x = 24

Divide by 12:

x = 2

Now that we have the value of x, we can find the length of the longest side (5x):

5x = 5(2) = 10 cm

So, the length of the longest side is 10 cm.

Explanation

A circle that passes through all three vertices of a triangle is called as the circumcircle of the triangle.

Explanation

The area of a triangle will be a=1m, b = 2m, c = 3m, a,b,c being lengths of respective sides is 3 sq m 

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Step-by-step explanation:

S = (1 + 2 + 3)/2 = 3

Explanation

Let  x= the length of two of the sides (the ones that are equal)

x + 5 = the length of the third side

x+ x+ x + 5 = 50 add all three sides

3x + 5 + 50  

3x = 50 -  4

3x = 45

subtract 5 from both sides x = 15 divide by 3

The length of the third side= x + 5 = 20