# MCQs in Geometry Part III - Answers

Answers key for the Compiled MCQs in Geometry Part 3 of the series as one topic in Engineering Mathematics in the ECE Board Exam.

Below are the answers key for the Multiple Choice Questions in Geometry – MCQs Part 3.

101. D. 8/sqrt(10)

102. A. 10

103. A. 1

104. C. -3/2

105. B. 9 sq. units

106. B. 4

107. C. 25 sq. units

108. B. y = -x – 2

109. B. 5

110. B. 3x – y + 1 = 0

111. D. 2x + y + 1 = 0

112. C. 3x – 2y = 12

113. C. 8

114. A. y – 6x = 0

115. B. y + 2x – 4 = 0

116. C. 3

117. B. -3/2

118. C. –6

119. C. x – y – 4 = 0

120. B. 5x – y = 14

121. B. 8x – 2y + 11 = 0

122. D. 15x – 10y – 9 = 0

123. A. 7x + 2y + 31 = 0

124. C. 4x + 5y = 2

125. D. 2x + y – 2 = 0

126. D. –3

127. D. 4

128. D. x – 4y = –14

129. A. 3

130. B. 2x – y – 2 = 0

131. B. 3

132. C. (1, 2)

133. D. (-2, -3)

134. C. 5

135. C. 8/3

136. A. -2.5

137. A. 7.07

138. B. 2.3

139. D. A circle of radius 5 centered at (2, -1)

140. B. (3, 5)

141. C. 25Ï€

142. B. (x – 2)^2 + (y + 2)^2 = 25

143. C. x^2 + y^2 + 8x + 10y – 12 = 0

144. A. 5

145. A. Parabola

146. A. (4, 0)

147. B. (0, 2)

148. D. x = –4

149. D. (-5/3, 1)

150. D. downward

### Online Questions and Answers in Geometry Series

Following is the list of practice exam test questions in this brand new series:

Geometry MCQs
PART 1: MCQs from Number 1 – 50                        Answer key: PART I
PART 2: MCQs from Number 51 – 100                        Answer key: PART II
PART 3: MCQs from Number 101 – 150                        Answer key: PART III
PART 4: MCQs from Number 151 – 200                        Answer key: PART IV