Match the following:
Measures of parts
Type of Triangle
(i) 3 sides of equal lengths
(a) Scalene
(ii) 2 sides of equal lengths
(b) Isosceles right-angled
(iii) All sides are of different lengths
(c) Obtuse angled
(iv) 3 acute angles
(d) Right angled
(v) 1 right angle
(e) Equilateral
(vi) 1 obtuse angle
(f) Acute-angled
(vii) 1 right angle with sides of equal lengths
(g) Isosceles

Question

Match the following:

Measures of parts	Type of Triangle
(i) 3 sides of equal lengths	(a) Scalene
(ii) 2 sides of equal lengths	(b) Isosceles right-angled
(iii) All sides are of different lengths	(c) Obtuse angled
(iv) 3 acute angles	(d) Right angled
(v) 1 right angle	(e) Equilateral
(vi) 1 obtuse angle	(f) Acute-angled
(vii) 1 right angle with sides of equal lengths	(g) Isosceles

Philoid · Accepted Answer

Measures of parts	Type of Triangle	Explanation
(i) 3 sides of equal lengths	(e) Equilateral	Equilateral triangle has all three sides equal.
(ii) 2 sides of equal lengths	(g) Isosceles	Iscoles triangle has any two sides equal.
(iii) All sides are of different lengths	(a) Scalene	Scalene triangle has all the three sides different.
(iv) 3 acute angles	(f) Acute-angled	When all the three angles of a triangle are less than 45^o, then it is an acute-angled triangle.
(v) 1 right angle	(d) Right-angled	When any one angle of a triangle is 90^o, then it is a right-angled triangle.
(vi) 1 obtuse angle	(c) Obtuse-angled	When any one angle of a triangle is greater than 90^obut less than 180^o, then it is an obtuse-angled triangle.
(vii) 1 right angle with sides of equal lengths	(b) Isosceles right-angled	When any two sides of a triangle are equal and one angle of the triangle is 90^o, then it is an Isosceles-right-angled triangle.