The lengths of the sides of a triangle are given below. Classify it as scalene, equilateral or isosceles triangle:

$15 \mathrm{cm},10 \mathrm{cm},8 \mathrm{cm}$

The lengths of the sides of a triangle are given below. Classify it as scalene, equilateral or isosceles triangle:

$12 \mathrm{cm}, 8 \mathrm{cm}, 8 \mathrm{cm}$

The lengths of the sides of a triangle are given below. Classify it as scalene, equilateral or isosceles triangle:

$16 \mathrm{cm}, 25 \mathrm{cm}, 18 \mathrm{cm}$

The lengths of the sides of a triangle are given below. Classify it as scalene, equilateral or isosceles triangle:

$7.5 \mathrm{cm}, 7.5 \mathrm{cm}, 7.5 \mathrm{cm}$

Classify the following triangles as acute-angled, right-angled or obtuse-angled triangle based on the angles given:

$50°,60°,70°$ 

Classify the following triangles as acute-angled, right-angled or obtuse-angled triangle based on the angles given:

$20°,70°,90°$ 

Classify the following triangles as acute-angled, right-angled or obtuse-angled triangle based on the angles given:

$110°,30°,40°$ 

Classify the following triangles as acute-angled, right-angled or obtuse-angled triangle based on the angles given:

$60°, 60°, 60°$