Secondary School (English Medium) (5 to 8) Class 7 - CBSE Question Bank Solutions

Remembering that 1AD came immediately after 1BC, while solving these problems take 1BC as –1 and 1AD as +1.

Turks ruled Egypt in the year 1517 AD and Queen Nefertis ruled Egypt about 2900 years before the Turks ruled. In what year did she rule?

Remembering that 1AD came immediately after 1BC, while solving these problems take 1BC as –1 and 1AD as +1.

Greek mathematician Archimedes lived between 287 BC and 212 BC and Aristotle lived between 380 BC and 322 BC. Who lived during an earlier period?

Find the complement of the following angle:

Find the complement of the following angle:

Find the complement of the following angle:

Identify the given pair of angles are complementary or supplementary.

63°, 27°

Identify the given pair of angles are complementary or supplementary.

45°, 45°

Identify the given pair of angles are complementary or supplementary.

80°, 10°

Find the angle which is equal to its complement.

An angle is greater than 45°. Is its complementary angle greater than 45° or equal to 45° or less than 45°?

If two angles are complementary, then the sum of their measures is _______.

Simplify and express the following in exponential form:

`(2^3 xx 2)^2`

Construct ΔABC, given m∠A = 60°, m∠B = 30° and AB = 5.8 cm.

Construct ΔPQR if PQ = 5 cm, m∠PQR = 105° and m∠QRP = 40°. (Hint: Recall angle sum property of a triangle).

Examine whether you can construct ΔDEF such that EF = 7.2 cm, m∠E = 110° and m∠F = 80°. Justify your answer.

Which congruence criterion do you use in the following?

Given: AC = DF

AB = DE

BC = EF

So, ΔABC ≅ ΔDEF

Which congruence criterion do you use in the following?

Given: ZX = RP

RQ = ZY

∠PRQ = ∠XZY

So, ΔPQR ≅ ΔXYZ

Which congruence criterion do you use in the following?

Given: ∠MLN = ∠FGH

∠NML = ∠GFH

ML = FG

So, ΔLMN ≅ ΔGFH

Which congruence criterion do you use in the following?

Given: EB = DB

AE = BC

∠A = ∠C = 90°

So, ΔABE ≅ ΔCDB

You want to show that ΔART ≅ ΔPEN,

If you have to use SSS criterion, then you need to show

1) AR =

2) RT =

3) AT =