Question

Find the area of the triangle whose base is 8 cm and altitude is 3.5 cm .





plsss give step-by-step explanation
























​

Answer 1

Given :

• Base of a triangle = 8 cm
• Height of a triangle = 3.5 cm

To find :

• Area of the triangle

Concept Used :

→ Formula to calculate area of triangle :-

• Area of triangle = ½ × b × h

where,

• b = base of the triangle
• h = height of the triangle

Solution :

Area of the triangle :-

⠀⠀⠀⇒ Area = ½ × b × h

⠀⠀⠀⇒ Area = ½ × 8 × 3.5

⠀⠀⠀⇒ Area = 4 × 3.5

⠀⠀⠀⇒ Area = 14

Area of the triangle = 14 cm²

⠀⠀⠀━━━━━━━━━━━

Know MorE :

• Perimeter of triangle = sum of all the three sides.
• Semi - perimeter = Perimeter ÷ 2

⠀⠀⠀⠀⠀⠀or

• Semi - perimeter = (a + b + c)/2

where,

• a, b and c are the three sides of the triangle respectively.

• Heron's formula = √s(s - a)(s - b)(s - c)
• Area of equilateral triangle = √3/4 a²

where,

• a is the side of the triangle.

Answer 2

Given :

• Base of Triangle = 8cm
• Altitude of Triangle = 3.5cm

To Find :

• Area of Triangle

Solution :

✰ As we know that, Area of Triangle is given by ½ × Base × Height. Now in this question Base and Height of a Triangle are given so simply we will apply the Formula to find the area.

⠀

Putting the Values :

⟹ Area of Triangle = ½ × B × H

⟹ Area of Triangle = ½ × 8 × 3.5

⟹ Area of Triangle = 4 × 3.5

⟹ Area of Triangle = 14cm²

Thus Area of Triangle is 14cm²

________________