Odisha Board - Class 7

Arithmetic & Algebra question bank (Mathematics (ଗଣିତ - ୭))

Practice 309 free Odisha Board - Class 7 Mathematics (ଗଣିତ - ୭) - Arithmetic & Algebra questions with answers and step-by-step solutions.

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Q1.

ପରିମିତି (Mensuration - PMST Level): 'ପୂର୍ଣ୍ଣାଙ୍କ ଗୁଣନ ଓ ହରଣ' ର ଟ୍ରାପିଜିୟମ୍ କିମ୍ବା ସିଲିଣ୍ଡରର କ୍ଷେତ୍ରଫଳ କ’ଣ ହେବ?

(A)

ଟ୍ରାପିଜିୟମ୍ କ୍ଷେତ୍ରଫଳ $= \frac{1}{2} (a + b) \times h$ କିମ୍ବା ବକ୍ରତଳ $= 2\pi r h$ (ପୂର୍ଣ୍ଣାଙ୍କ ଗୁଣନ ଓ ହରଣ)

(B)

$a \times b$

(C)

ଭୂମି $\times$ ଉଚ୍ଚତା

(D)

ଏଥିମଧ୍ୟରୁ କୌଣସିଟି ନୁହେଁ

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Q2.

ବୀଜଗାଣିତିକ ଅଭେଦ (Algebraic Identities): 'ପୂର୍ଣ୍ଣାଙ୍କ ଗୁଣନ ଓ ହରଣ' ଅନୁସାରେ $(a + b)^2$ ର ବିସ୍ତାର କ’ଣ?

(A)

$a^2 + 2ab + b^2$ (ପୂର୍ଣ୍ଣାଙ୍କ ଗୁଣନ ଓ ହରଣ)

(B)

$a^2 + b^2$

(C)

$a^2 - 2ab + b^2$

(D)

$(a - b)^2$

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