☰ Contents · Geometry

Practical lesson and Chapter III review

Lessons 27–28 · 2 lessons · Geometry Grade 7, corrected and expanded 3rd edition. Yangiyo‘l Poligraf Servis, Tashkent, 2017 (approved by the Ministry of Public Education)
Answers are for parents and teachers.
1
A foundation 9 m × 6 m outside, 0.5 m thick: inner perimeter in metres (inner 8 m × 5 m)?
2
△ABC = △A₁B₁C₁ by SAS, AB = 4, A₁C₁ = 6, ∠A = ∠A₁. Find AC.
3
The bisector from the apex falls on a base of 40 cm. Half of the base?
4
Write the three congruence criteria from Chapter III.
5
Give two real-life examples of rigid shapes.