Maths By SK

Showing posts with the label class 7Show all

Class 7 SA 1

SUMMATIVE ASSESSMENT –I Session:2025-26 CLASS: VII MAX MARKS : 50 SUB : MATHEMATICS TIME : 3 Hours Section – A (25 x 2 Marks each =50 Marks) 1. Organize the following marks in a class assessmen…

Class 7 The Triangle and its Properties Ex 6.5

1. PQR is a triangle, right-angled at P. If PQ = 10 cm and PR = 24 cm, find QR. Solution:- Let us draw a rough sketch of a right-angled triangle. By the rule of Pythagoras’ Theorem, QR 2 = PQ 2 + PR 2 QR 2 = 10 2 + 24 2 QR …

Class 7 The Triangle and its Properties Ex 6.4

1. Is it possible to have a triangle with the following sides? (i) 2 cm, 3 cm, 5 cm Solution:- Clearly, we have (2 + 3) = 5 5 = 5 Thus, the sum of any two of these numbers is not greater than the third. Hence, it is not possibl…

Class 7 The Triangle and its Properties Ex 6.3

1. Find the value of the unknown x in the following diagrams: (i) Solution:- The sum of all the interior angles of a triangle is 180 o . ∠BAC + ∠ABC + ∠BCA = 180 o x + 50 o + 60 o = 180 o x + 110 o = 180 o x = 180 o – 110 o x…