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Homework Practice

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Mensuration: Area and Perimeter: Practice 2

Section A: Core Practice

Question 1mcq
Which angle is acute?
A.120∘120^\circ
B.180∘180^\circ
C.90∘90^\circ
D.45∘45^\circ
Question 2mcq
Which angle is acute?
A.120∘120^\circ
B.180∘180^\circ
C.90∘90^\circ
D.45∘45^\circ
Question 3mcq
Which angle is acute?
A.45∘45^\circ
B.180∘180^\circ
C.90∘90^\circ
D.120∘120^\circ
Question 4mcq
Which angle is acute?
A.45∘45^\circ
B.180∘180^\circ
C.90∘90^\circ
D.120∘120^\circ
Question 5mcq
Using Heron’s formula, what is the semi-perimeter of a triangle with sides 5 cm5\,cm, 6 cm6\,cm, and 7 cm7\,cm?
A.10 cm10\,cm
B.9 cm9\,cm
C.8 cm8\,cm
D.18 cm18\,cm

Section B: Application Practice

Question 6mcq
A student is practising Historical Area Ideas. Which statement best matches the idea: Explain the classical problem of squaring a shape?
A.Use the correct definition or theorem and justify each step with mathematical reasoning.
B.Change the question so the answer becomes easier.
C.Use only a guess because diagrams are always exact.
D.Ignore the given conditions and choose any formula.
Question 7mcq
A Sulbasutra-style construction of a square with a given side mainly shows:
A.Geometry can solve practical construction problems step by step.
B.Only probability experiments.
C.That squares cannot be constructed.
D.Only decimal expansion of fractions.
Question 8mcq
Which angle is acute?
A.45∘45^\circ
B.90∘90^\circ
C.180∘180^\circ
D.120∘120^\circ
Question 9mcq
Which angle is acute?
A.120∘120^\circ
B.45∘45^\circ
C.180∘180^\circ
D.90∘90^\circ
Question 10mcq
Which angle is acute?
A.120∘120^\circ
B.45∘45^\circ
C.180∘180^\circ
D.90∘90^\circ