Find the Missing Values Base Height:

Solution:

(a) Area of the triangle = 87 cm²

Base = 15 cm

Area of a triangle = 1/2 × Base × Height

87 cm² = 1/2 × 15 cm × Height

Height = 87 cm² × 2 / 15 cm

Height = 174 cm² / 15 cm

Height = 11.6 cm

(b) Area of the triangle = 1256 mm²

Height = 31.4 mm

Area of triangle = 1/2 × Base× Height

1256 mm² = 1/2 × Base × 31.4 mm

Base = (2 × 1256 mm²) / 31.4 mm

Base = 2512 mm² / 31.4 mm

Base = 80 mm

(c) Area of the triangle = 170.5 cm²

Base = 22 cm

Area of triangle = 1/2 × Base× Height

170.5 cm² = 1/2 × 22 cm × Height

Height = (2 × 170.5 cm²) / 22 cm

Height = 341 cm² / 22 cm

Height = 15.5 cm

☛ Check: NCERT Solutions for Class 7 Maths Chapter 11

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Video Solution:

Find the Missing Values Base Height:

Class 7 Maths NCERT Solutions Chapter 11 Exercise 11.2 Question 4

Summary:

The missing values are: (i) Height = 11.6 cm (ii) Base = 80 mm (iii) Height = 15.5 cm

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