Triangle and it's properties

The total measure of the three angles of a triangle is

• 360°

• 90°

• 180°

• 120°

Answer explanation

Angle sum property of triangle.

Tags

CCSS.8.G.A.5

If two sides of a triangle are equal, the triangle is called _______

Answer explanation

In geometry, an isosceles triangle is a triangle that has two sides of equal length.

Tags

CCSS.2.G.A.1

How many elements are there in a triangle?

• 3

• 4

• 6

• None of these

Define an acute-angled triangle.

Answer explanation

An acute-angled triangle is a type of triangle in which all the three internal angles of the triangle are acute, that is, they measure less than 90°.

Tags

CCSS.4.G.A.2

Draw an obtuse angle triangle.

Answer explanation

An obtuse-angled triangle is a triangle in which one of the interior angles measures more than 90° degrees. In an obtuse triangle, if one angle measures more than 90°, then the sum of the remaining two angles is less than 90°.

Tags

CCSS.4.G.A.1

Let ABC is a right angle triangle at B. If AC = 25 cm and AB = 7 cm then the length of BC is

• 25 cm

• 24 cm

• 14 cm

• 228 cm

Answer explanation

In triangle ACB, By Pythagoras theorem, (Hypotenuse)2 = (Perpendicular)2 + (Base)2

(AB)2 = (AC)2 + (BC)2

(25)2 = (7)2 + (BC)2

625 = 49 + (BC)2

(BC)2 = 625 – 49

(BC)2 = 576

BC = 24 cm

Thus, BC is equal to 24cm

Tags

CCSS.8.G.B.7

The triangle whose lengths of sides are 3 cm, 4 cm, 5 cm is a __________.

Answer explanation

Given, sides of a triangle are 3 cm, 4 cm and 5 cm. It is right angle triangle as it satisfy Pythagoras theorem.

Tags

CCSS.4.G.A.2

In a triangle, there are ____ sides and ____ angles

• 4, 4

• 3, 4

• 4,3

• 3, 3

Answer explanation

A triangle has Three sides and There angles.

Tags

CCSS.2.G.A.1

Define an obtuse angled triangle.

Answer explanation

An obtuse-angled triangle is a triangle in which one of the interior angles measures more than 90° degrees. In an obtuse triangle, if one angle measures more than 90°, then the sum of the remaining two angles is less than 90°.

Tags

CCSS.4.G.A.2

Two angles of a triangle measure 90° and 30°. The measure of the third angle is

• 90°

• 30°

• 60°

• 120°

Answer explanation

Third angle = 180° – (90° + 30°) = 60°.

Tags

CCSS.8.G.A.5