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
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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